Compact Dual-band Bandpass Filter Using Coupled Lines Multimode Resonator

Peng, Yang; Zhang, Lijun; Fu, Jun; Wang, Yudong; Leng, Yongqing

doi:10.1109/lmwc.2015.2400936

Cited by 43 publications

(26 citation statements)

References 8 publications

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“…Good agreement between the measured data and the anticipated results is achieved. One of the key components of wireless communications system is the power amplifier [1][2][3][4][5]. In particular, the linearity of the power amplifier becomes increasingly important to guarantee the high data rate of the sophisticated modern wireless communication systems [1][2][3].…”

Section: Resultsmentioning

confidence: 99%

“…One of the key components of wireless communications system is the power amplifier [1][2][3][4][5]. In particular, the linearity of the power amplifier becomes increasingly important to guarantee the high data rate of the sophisticated modern wireless communication systems [1][2][3]. However, as shown in Figure 1, owing to the trade-off relationship between the power efficiency and the linearity of power amplifiers, it becomes difficult to obtain reasonable efficiency with the required linearity in the power amplifier [6][7][8].…”

Section: Resultsmentioning

confidence: 99%

“…With the development of wireless communication, the more crowded the spectrum is, the more stringent specifications for designing filters are. The repaid growth of the wireless communication systems require designing compact and multiband microwave bandpass filters [1][2][3][4][5][6][7][8]. Therefore, these systems require multiband operating transceivers.…”

Section: Introductionmentioning

confidence: 99%

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Design of 5 GHz‐compact reconfigurable DGS‐bandpass filter using varactor‐diode device and coupling matrix technique

Boutejdar

2015

Micro & Optical Tech Letters

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the location of two operating frequencies can be arbitrarily controlled by the combination of WS 1 and LS 1 . CONCLUSIONIn this article, a novel filtering crossover structure had been presented. By introducing inset feed approach on the circular patch element, the filtering crossover can be easily implemented. To extend the operating frequency, the stub loading mechanism is employed on the basic filtering crossover structure. The proposed approach offers low circuit complexity and high design flexibility such as the freedom to control frequency ratio. Examples of the proposed filtering crossovers are designed and verified by simulation and measurement.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of 5 GHz‐compact reconfigurable DGS‐bandpass filter using varactor‐diode device and coupling matrix technique

Boutejdar

2015

Micro & Optical Tech Letters

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“…The evolution of 4G cellular systems towards the first 5G milestone is increasingly creating the need for the design of compact and multiband microwave bandpass filters [1][2] that can provide RF connectivity within a multimode wireless networking environment. Planar filters are attractive due to their reduced size, ease of fabrication, and offering lower cost.…”

Section: Introductionmentioning

confidence: 99%

Compact Band-Pass Filter with Controllable Frequency Characteristics

Elfergani

Rodriguez

Abd‐Alhameed

2018

Loughborough Antennas &Amp; Propagation Conference 2018 (LAPC 2018)

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A compact microstrip tunable bandpass filter (BPF) is proposed and investigated. The filter synthesis and structure are based on parallel microstrip lines that are printed over an RT/ duroid 6006/6010LM substrate, with a permittivity of 10.2 and thickness of 1.27mm. A parallel topology method can be adjusted for the filter tunablility in the center frequency, to allow fully tuned frequency response. In order to tune the targeted pass band frequency, a lumped element capacitor is used. This capacitor was optimally located over the middle strip resonator. The pass band frequency was smoothly shifted downwards from 2.4GHz to 1.8GHz, when the capacitance of the capacitor varies from 0.15pf to 0.9pf. The proposed filter demonstrates in-band insertion loss of around 0.25 dB and return loss better than 20 dB over the whole pass band frequency. This presents the filter as a favourable candidate for numerous smart future applications.

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“…Up to now, most of existing dual-band filters are based on the conventional microstrip technology [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Due to the low-Q of the microstrip resonator, the insertion loss of resulting filters is high.…”

Section: Introductionmentioning

confidence: 99%

Design of Asymmetric Dual-Band Microwave Filters

Zhang¹,

Ding²,

Wang³

et al. 2017

PIER Letters

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Abstract-This paper presents the design and implementation of dual-band filters. The proposed method works well for dual-band filters with asymmetric dual-passband, high selectivity, and preassigned in-band return loss levels (e.g., equal or un-equal at two frequency bands). To verify the design concept, a prototype dual-band filter using combline coaxial cavity-type resonators was designed, fabricated and tested. Good agreement has been achieved among the theoretical synthesis results, simulation results and measurement results.

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Compact Dual-band Bandpass Filter Using Coupled Lines Multimode Resonator

Cited by 43 publications

References 8 publications

Design of 5 GHz‐compact reconfigurable DGS‐bandpass filter using varactor‐diode device and coupling matrix technique

Design of 5 GHz‐compact reconfigurable DGS‐bandpass filter using varactor‐diode device and coupling matrix technique

Compact Band-Pass Filter with Controllable Frequency Characteristics

Design of Asymmetric Dual-Band Microwave Filters

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